Method of and apparatus for transmitting digital broadcasting signal in advanced-VSB (A-VSB) system in which transport packet without adaptation field is provided at fixed location in data field slices

Abstract

A method of processing a digital broadcasting signal includes generating a transport stream including a plurality of transport packets; selecting one of the transport packets as a starting packet to be mapped into a first data segment of an encoded data frame; and constructing deterministic data frames in the transport stream beginning with the starting packet; wherein at least one of the 52 transport packets does not have an adaptation field; wherein all remaining ones of the 52 transport packets do have an adaptation field; and wherein the at least one transport packet that does not have an adaptation field is provided at a fixed location in each of the slices.

What is claimed is: 
     
       1. A digital broadcasting receiver comprising:
 a receiver to receive a transmitted stream from a digital broadcasting transmitter, the transmitted stream comprising a known pattern of symbols and a data field sync; and 
 an equalizer to equalize the received stream using the known pattern of symbols, 
 wherein the digital broadcasting transmitter comprises an outer encoder for encoding the stream in a ½ or ¼ code rate and a trellis encoder for trellis encoding the stream, and 
 wherein the trellis encoder is reset on first 2 symbols, that is 4 bits, of the known pattern of symbols, and the known pattern of symbols is not included in the data field sync. 
 
     
     
       2. The digital broadcasting receiver of  claim 1 , wherein the transmitted stream further comprises information regarding the known pattern of symbols, and
 wherein the data field sync comprising a reserved area comprising the information regarding the known pattern of symbols. 
 
     
     
       3. The digital broadcasting receiver of  claim 2 , wherein the information regarding the known pattern of symbols is Walsh coded and inserted into the reserved area of the data field sync. 
     
     
       4. The digital broadcasting receiver of  claim 2 , wherein the information regarding the known pattern of symbols comprises at least one of information on a length of the known pattern of symbols and information on a loss of payload data of the transmitted stream.